JP6641248B2 - Filter unit, air conditioner and filter recharging method - Google Patents

Description

  The present invention relates to a filter unit for collecting dust, an air conditioner, and a filter recharging method.

  2. Description of the Related Art A nonwoven fabric charging filter is used as one of means for collecting fine particles in air in an air conditioner. The charging filter realizes an excellent collection rate of fine particles while suppressing pressure loss by using an electrostatic collection mechanism with charges fixed to the surface of the fiber, in addition to a mechanical collection mechanism. It is. Charging filters are classified into corona charging filters, friction charging filters, and the like, depending on the charging method used during manufacture. Since these charging methods have different dust collection characteristics and costs, they are properly used depending on the dust collection performance and cost conditions required from the equipment to be mounted. BACKGROUND ART In recent years, a triboelectric charging filter capable of obtaining a constant collection rate with a low pressure loss has been attracting attention for use in an air conditioner which requires a low pressure loss of dust collection for energy saving.

  The charge filter loses the electric polarization due to the adhesion of dust and water to the fibers during use, so that the collection rate decreases. Therefore, in order to recover the collection rate to the collection rate at the time of initial production, a technique of recharging by friction of a filter is known.

  As a conventional recharging technique, there is a technique in which a filter is sandwiched between a pair of charging brushes, the pair of charging brushes are rotated in opposite directions, and the surface of the filter is rubbed to perform recharging (for example, see Patent Document 1). .

Japanese Patent No. 5630600

  However, in the technique of Patent Document 1, the surface of the filter is frictionally charged by rubbing with a charging brush, so that only the surface of the filter can be rubbed, and the deep part of the filter cannot be sufficiently rubbed. For this reason, there has been a problem that the charging becomes partial and the collection rate cannot be sufficiently recovered.

  The present invention has been made to solve the above-described problems, and a filter unit and an air conditioner capable of recharging a filter including a deep part of the filter and capable of sufficiently recovering a collection rate. And a filter recharging method.

A filter unit according to the present invention includes a filter composed of a plurality of types of fibers having triboelectric charging properties, a plug member inserted into the filter, and a vibrating unit that relatively vibrates the plug member and the filter. Having a plurality of vents, and a pair of vent members sandwiching the filter from both sides, wherein a plurality of insertion members are provided on the side of the pair of vent members facing each filter. It is.

  An air conditioner according to the present invention includes the above filter unit.

In the filter recharging method according to the present invention, a filter composed of a plurality of types of fibers having triboelectric charging properties is sandwiched from both sides by a pair of vent members having a plurality of vents, and a pair of vent members is provided. A plurality of insertion members are provided on the side facing the respective filters and are inserted into the filter, and the insertion member and the filter are relatively vibrated to move a plurality of kinds of fibers, thereby causing friction. It is charged.

  According to the present invention, by vibrating the insertion member protruding into the filter and moving the fibers, the filter including the deep portion of the filter can be recharged, and the collection rate can be sufficiently recovered.

FIG. 2 is a perspective view of a filter unit according to Embodiment 1 of the present invention. FIG. 2 is a diagram collectively showing a schematic cross-sectional view and a partially enlarged view of the filter unit according to Embodiment 1 of the present invention. FIG. 2 is a diagram collectively showing a schematic cross-sectional view and a partially enlarged view of a filter of the filter unit according to Embodiment 1 of the present invention. FIG. 3 is an assembly diagram of the filter unit according to Embodiment 1 of the present invention. FIG. 1 is a schematic sectional view of an air conditioner including a filter unit according to Embodiment 1 of the present invention. 4 is a flowchart showing an operation procedure from collection of particles to recharging in the filter unit according to Embodiment 1 of the present invention. FIG. 5 is a diagram showing an evaluation result of dust collection performance of the filter unit according to Embodiment 1 of the present invention. It is a figure which shows the other modification of the barb of the insertion member of the filter unit which concerns on Embodiment 1 of this invention. FIG. 9 is a schematic sectional view illustrating a configuration of a filter unit according to Embodiment 2 of the present invention. 9 is a flowchart illustrating an operation procedure from collection of particles to recharging in the filter unit according to Embodiment 2 of the present invention. FIG. 13 is a schematic sectional view illustrating a configuration of a filter unit according to Embodiment 3 of the present invention.

  Hereinafter, a preferred embodiment of a filter unit according to the present invention will be described with reference to the drawings. In the following, the description will be made focusing on the filter unit, including the filter recharging method. In addition, the same or corresponding parts in the respective drawings will be described with the same reference numerals.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a filter unit according to Embodiment 1 of the present invention. FIG. 2 is a diagram collectively showing a schematic cross-sectional view and a partially enlarged view of the filter unit according to Embodiment 1 of the present invention. FIG. 3 is a diagram collectively showing a schematic cross-sectional view and a partially enlarged view of the filter of the filter unit according to Embodiment 1 of the present invention. 1 and 2, the white arrows indicate the ventilation direction.

  The filter unit 1 includes a filter 10 to be subjected to a recharging process, and a housing 20 that houses the filter 10 therein. The filter 10 is a rectangular sheet-shaped triboelectric charging filter, and is made of a nonwoven fabric. The filter 10 has a two-layer structure of a sheet-like charging material 11 and a sheet-like support material 12, as shown in FIGS.

  The charging material 11 is obtained by entanglement of the first fiber 11a and the second fiber 11b having a triboelectric property with a needle punch and triboelectric charging. Polyolefin-based long fibers such as PAN (Polyacrylonitrile) are used as the first fibers 11a. An acrylic long fiber such as PP (Poly propylene) is used for the second fiber 11b. The supporting material 12 has the same outer shape as the charging material 11, and is made of nonwoven fabric of short fibers such as PET (Polyethylene terephthalate). Then, the filter 10 is manufactured by adhering the charging material 11 to a supporting material 12 having a structural support force by a chemical bond method or the like.

  The housing 20 includes a metal frame member 21 that covers the outer periphery of the filter 10 and a wire net 22 as a ventilation member attached to the frame member 21 so as to sandwich the filter 10 from both sides. Hereinafter, the wire mesh 22 on the downstream side in the ventilation direction may be distinguished from the wire mesh 22a, and the wire mesh on the upstream side in the ventilation direction may be distinguished from the wire mesh 22b. The wire mesh 22a is attached to the frame 21 via the shaft 31 as shown in FIG. 2, and the wire mesh 22b is fixed to the frame 21 with screws (not shown).

  A first vent 23a is formed between the stitches of the wire mesh 22a, and a second vent 23b is formed between the stitches of the wire mesh 22b. A plurality of insertion members 25 having hook-shaped barbs 24 (returns) at their ends are provided on the surface of the wire mesh 22 facing each of the filters 10 in a dispersed manner in the surface direction of the filter 10. The insertion member 25 is made of, for example, PP. The insertion member 25 is inserted into the filter 10 such that the barb 24 engages with the first fiber 11a and the second fiber 11b of the charging material 11 of the filter 10. Here, the term “engagement” includes not only a state in which the barb 24 is hooked on the first fiber 11a and the second fiber 11b, but also a state in which the barb 24 is in contact with the first fiber 11a and the second fiber 11b. It is a thing. Hereinafter, the insertion member 25 provided on the wire mesh 22a may be distinguished from the insertion member 25a, and the insertion member 25 provided on the wire mesh 22b may be distinguished from the insertion member 25b.

  A vibrating unit 30 that is a vibration motor is attached to the wire netting 22a. By vibrating the vibrating unit 30, the wire netting 22a and the insertion member 25a move in the XY axis direction and the Z-axis direction in FIG. Vibrates in the direction. The X direction is the ventilation direction and the thickness direction of the filter 10, the Y direction is a direction perpendicular to the X direction, and the Z direction is a direction orthogonal to the Y direction and perpendicular to the X direction. The vibration unit 30 is electrically connected to the control device 108, and the operation is controlled by the control device 108. The vibration direction of the insertion member 25 may be any one of the X direction, the Y direction, and the Z direction, or may be a plurality of directions, and the vibration direction is not limited.

FIG. 4 is an assembly diagram of the filter unit according to Embodiment 1 of the present invention.
When assembling the filter unit 1, first, the frame material 21 is attached to the outer periphery of the filter 10, and then the wire mesh 22 is attached so as to sandwich the filter 10 from both sides thereof, whereby the filter unit 1 is assembled. At this time, the insertion member 25a provided on the wire mesh 22a is inserted into the charging material 11 of the filter 10, and the barb 24 at the tip of the insertion member 25a engages with the first fiber 11a and the second fiber 11b of the charging material 11. I do. Also in the wire netting 22b, the barb 24 at the tip end of the insertion member 25b penetrates the support member 12 and reaches the charging material 11, and engages with the first fiber 11a and the second fiber 11b of the charging material 11. Thereby, in a state where the filter unit 1 is assembled, each barb 24 of the insertion members 25a and 25b is configured to be engaged with the first fiber 11a and the second fiber 11b of the charging material 11.

FIG. 5 is a schematic sectional view of an air conditioner including the filter unit according to Embodiment 1 of the present invention.
The air conditioner main body 100a of the air conditioner 100 has a housing 103 having a base 101 mounted on a wall surface, and a front grill 102 detachably mounted on the front surface of the base 101 so as to be openable and closable. . On the upper surface of the base 101, a suction port 104 for sucking room air is formed. Further, an outlet 105 for blowing air into the room is formed on a lower side of the housing 103.

  Inside the housing 103, a heat exchanger 106 and a fan 107 for blowing air to the heat exchanger 106 are provided. The filter unit 1 shown in FIG. 1 is provided upstream of the heat exchanger 106 in the air, and removes dust and the like from the air flowing into the heat exchanger 106. Although the filter unit 1 is not shown in detail in FIG. 1, the filter unit 1 is provided with a casing such that the second vent 23 b faces the suction port 104 and the first vent 23 a faces the heat exchanger 106. 103.

  The air conditioner 100 includes a refrigeration cycle configured by sequentially connecting a heat exchanger 106 and a compressor or the like mounted on an outdoor unit (not shown) by piping. By circulating and exchanging heat with the indoor air in the heat exchanger 106, the temperature-adjusted air is blown into the room to air-condition (cool or heat) the room.

  The air conditioner 100 is further provided with a control device 108 for controlling the entire air conditioner, such as controlling the vibration unit 30 of the filter unit 1. The control device 108 can be configured by hardware such as a circuit device that realizes the function, or can be configured by an arithmetic device such as a microcomputer or a CPU and software executed thereon.

Next, the operation of the filter unit according to Embodiment 1 of the present invention will be described. FIG. 6 is a flowchart showing an operation procedure from collection of particles to recharging in the filter unit according to Embodiment 1 of the present invention.
The control device 108 drives the fan 107 by operating the air conditioner 100, and performs dust collection by the filter 10 (step S1). That is, by driving the fan 107, air flows in the direction of the arrow in FIG. 5, and air passes from the second vent 23b of the filter unit 1 to the first vent 23a via the filter 10. As a result, fine particles, dust, dust and the like contained in the air are collected by the filter 10. Then, the amount of charge of the filter 10 decreases due to the adhesion of dust and water to the charging material 11 during use, and the electrostatic collection effect decreases with time (step S2).

  After a specified operation time (here, for example, 300 hours), the control device 108 stops the operation of the fan 107, and then starts recharging the filter 10 whose charge amount has decreased (step S3). At the time of recharging, the control device 108 vibrates the vibrating section 30 of the filter unit 1. Thereby, the insertion member 25a vibrates together with the wire netting 22a to which the vibration part 30 is attached. Note that the insertion member 25b of the wire netting 22b to which the vibration unit 30 is not attached does not vibrate and remains stationary.

  The barbs 24 of both insertion members 25a, 25b of the wire meshes 22a, 22b are engaged with the first fibers 11a and the second fibers 11b of the filter 10. Therefore, the fibers engaged with the insertion member 25a move due to the vibration of the insertion member 25a, and the fibers engaged with the insertion member 25b remain stationary. In this way, the fibers move relatively, and the friction between the fibers is promoted, so that triboelectric charging occurs (step S4). In the triboelectric charging, the first fibers 11a are positively charged and the second fibers 11b are negatively charged according to the charging characteristics of the fiber material.

  Here, the vibration unit 30 is vibrated for a prescribed set time (here, for example, about 5 minutes). By vibrating for a prescribed set time, the charge amount of the fiber is saturated, and the recharge of the filter 10 is completed (step S5). After the specified charging time elapses and the recharging is completed, the control device 108 stops the vibration of the vibration unit 30 (step S6). The operation of recharging in the same procedure as described above is repeated every 300 hours of operation.

FIG. 7 is a diagram showing an evaluation result of dust collection performance of the filter unit according to Embodiment 1 of the present invention.
Sample 1 is an unused filter, Sample 2 is a filter simulating a decrease in charge amount due to use by immersing Sample 1 in tap water and drying, and Sample 3 is a sample 2 which is recharged by the vibration of the vibrating unit 30. Filter. As a result of evaluating each dust collection performance, the collection rate (counting method) of 0.3 to 0.5 μm-based particles at a wind speed of 0.2 m / s was 72.4% for sample 1 and 42.0 for sample 2 % And Sample 3 were 73.0%. The pressure loss was 9.5 Pa in each case, and no difference was observed in any of the samples. From this, it can be confirmed that by performing re-charging by the vibration of the vibrating unit 30 on the filter in which the charge amount has been reduced and the collection rate has been reduced, the collection rate has been restored to the same level as the unused filter. Was.

(Modification)
In the first embodiment, an example in which the vent member in which the first vent port 23a and the second vent port 23b are formed is the wire mesh 22, but for example, a punching metal may be used. However, the present invention is not limited to this example. The material of the vent member is not necessarily a metal material, and a resin material such as ABS (acrylonitrile butadiene style) can be used.

  Further, in the first embodiment, the opening ratio of the first ventilation port 23a and the second ventilation port 23b is not limited. However, if the opening rate is small, the air passage is closed and the pressure loss increases, so that the opening rate is 30% or more. It is preferable that

  In the first embodiment, the example in which the material of the insertion member 25 is PP has been described. However, a metal material such as a stainless steel wire may be used, and the material of the insertion member 25 is not limited to the above-described example.

  Further, in Embodiment 1, there is no limitation on the diameter of the insertion member 25, but if the diameter of the insertion member 25 is too small, it does not engage with the fibers of the filter 10, and if it is too large, the filter 10 is closed. The diameter of the insertion member 25 is preferably in the range of, for example, 20 μm to 2 mm.

In the first embodiment, the density of the insertion member 25 is not limited. However, if the density is low, the filter 10 cannot be uniformly recharged, and if the density is high, the filter 10 is blocked. The density of the insertion member 25 is preferably 1 piece / cm ^{2 to} 100 pieces / cm ² .

  Further, in the first embodiment, an example in which the shape of the barb 24 of the insertion member 25 is a hook shape is shown, but the shape of the barb 24 is not limited to the hook shape, and may be, for example, a shape shown in FIG.

FIG. 8 is a diagram showing another modified example of the barb of the insertion member of the filter unit according to Embodiment 1 of the present invention.
As shown in (a), a configuration in which a plurality of barbs 24 project perpendicularly from the outer peripheral surface in a different direction in the insertion direction on the outer peripheral surface of the tapered cylindrical insertion member 25 may be adopted. Further, as shown in (b), a pair of barbs 24 facing each other across the insertion member 25 may be provided on the outer peripheral surface of the tapered cylindrical insertion member 25. Further, as shown in (c), a plurality of barbs 24 curved in a direction opposite to the distal end direction (upward in FIG. 8) are provided on the outer peripheral surface of the insertion member 25 alternately in different directions in the insertion direction. It may be configured.

  Although the insertion member 25 has a tapered cylindrical shape here, the shape of the insertion member 25 is not limited to this, and may be, for example, a prismatic shape. In addition, since the insertion member 25 is inserted into the filter 10, it is easy to insert the tapered end if it is tapered, but it does not necessarily have to be tapered. In short, what is necessary is just to be comprised so that the insertion member 25 may engage with a fiber. If the insertion member 25 engages with the fiber, the barb 24 may not be provided as shown in (d).

  Further, in the first embodiment, the example in which the insertion member 25 is vibrated by using the vibration unit 30 as the vibration motor has been described. However, the vibration unit 30 is not limited to this configuration, and any structure can be used as long as the insertion member 25 can be vibrated. Alternatively, for example, instead of the shaft 31, a spring that expands and contracts in the ventilation direction may be provided, and the insertion member 25 may be vibrated using the wind passing through the filter unit 1.

  Further, in the first embodiment, the device to which the filter unit 1 is applied is an air conditioner that performs air temperature control, but the air conditioner also includes an air purifier that does not perform air temperature control. Shall be.

  As described above, according to the first embodiment, the insertion member 25 inserted into the filter 10 is vibrated to move the fibers from the deep portion to the surface of the filter 10 to promote friction between the fibers. This makes it possible to recharge the filter 10 including the deep portion of the filter 10 whose charge has been reduced by use, and to sufficiently recover the dust collection rate.

  Further, as a method of performing recharging, there is a method of inserting and removing a needle into and out of a filter a plurality of times, but this method may cause a decrease in filter strength and a deformation of the filter. However, in the first embodiment, since only the insertion member 25 inserted into the filter 10 is vibrated, it is possible to recharge the filter 10 without lowering the strength or deforming the filter 10.

  In addition, since the insertion member 25 is formed on the wire mesh 22 as a pair of vent members, the insertion member 25 can be easily vibrated by attaching the vibrating unit 30 to the wire mesh 22 and vibrating.

  Further, by configuring the vibrating section 30 with a motor, it is possible to vibrate at a timing that requires recharging under the control of the control device 108.

  Further, since the vibrating section 30 is vibrated for a set time required for the saturation of the charge amount of the fiber, the collection rate can be restored to the same level as in the initial manufacturing.

  Further, since the plurality of insertion members 25 are dispersedly arranged in the surface direction of the filter 10, the entire filter can be uniformly recharged.

  In addition, a spring that expands and contracts in the ventilation direction of the filter 10 can be used as the vibration unit 30. In this case, it is possible to vibrate by the wind pressure of the wind passing through the filter unit 1, and an electrical configuration for vibrating the vibrating section 30 becomes unnecessary.

  In addition, since the insertion member 25 includes the barbs 24 that engage with the plurality of types of fibers of the filter 10, the fibers can be efficiently rubbed.

Embodiment 2 FIG.
In the first embodiment, the configuration in which the vibrating section 30 is provided on one side of the filter 10 is described. In the second embodiment, the vibrating section 30 is provided on both sides of the filter 10, and from both sides of the filter 10. The difference from the first embodiment is that the filter 10 is recharged by vibrating both the inserted insertion members 25. Hereinafter, a description will be given focusing on differences between the second embodiment and the first embodiment. Configurations not described in the second embodiment are the same as those in the first embodiment. The modification applied to the components of the first embodiment is similarly applied to the similar components of the second embodiment. This is the same in the embodiments described later.

FIG. 9 is a schematic sectional view illustrating a configuration of a filter unit according to Embodiment 2 of the present invention.
In the filter unit 1 of the second embodiment, in addition to the filter unit 1 of the first embodiment shown in FIG. 2, a vibrating part 30A as a vibrating motor is further attached to a wire net 22b. Further, in the first embodiment, the wire netting 22b is fixed to the frame member 21 with screws. In the second embodiment, the wire net 22b is attached to the frame member 21 via the shaft 31A. Thus, by vibrating the vibration part 30A, the wire netting 22b and the insertion member 25b vibrate in the XY axis direction and the Z axis direction in FIG. 9 according to the movable direction of the shaft 31A.

  The vibrating part 30A is electrically connected to the control device 108 similarly to the vibrating part 30, and the vibrating part 30 and the vibrating part 30A can be vibrated independently of each other. Then, the insertion members 25a and 25b inserted from both sides of the filter 10 can be vibrated at different frequencies and phases.

Next, the operation of the filter unit 1 according to the second embodiment will be described. Similar to Embodiments 1 and 2, a case where the present filter unit 1 is mounted on an air conditioner 100 will be described as an example. FIG. 10 is a flowchart showing an operation procedure from collection of particles to recharging in the filter unit according to Embodiment 2 of the present invention.
The control device 108 operates the fan 107 of the air conditioner 100 to perform dust collection by the filter 10 (step S11). Due to the adhesion of dust and water to the charging material 11 due to the use of the filter 10, the electrostatic collection effect decreases with time (step S12).

  After a specified operation time (here, for example, 300 hours), the control device 108 stops the operation of the fan 107, and then starts recharging the filter 10 whose charge amount has decreased (step S13). At the time of recharging, the control device 108 causes the vibrating unit 30 and the vibrating unit 30A to vibrate at the same frequency and with a phase shifted by 180 °. Thereby, the insertion member 25a vibrates together with the wire netting 22a to which the vibration part 30 is attached, and the insertion member 25b vibrates in a direction different from that of the insertion member 25a together with the wire netting 22b to which the vibration part 30A is attached. As a result, the fibers relatively move, and friction between the fibers is promoted, so that triboelectric charging occurs (step S14). In the triboelectric charging, the first fibers 11a are positively charged and the second fibers 11b are negatively charged according to the charging characteristics of the fiber material.

  Here, the vibrating sections 30 and 30A are vibrated for a prescribed set time (here, for example, about 2.5 minutes). By vibrating for a specified set time, the charge amount of the fiber is saturated, and the recharge of the filter 10 is completed (step S15). After a predetermined set time has elapsed and the recharging is completed, the control device 108 stops the vibration of the vibrating units 30 and 30A (step S16). The operation of recharging in the same procedure as described above is repeated every 300 hours of operation.

  As described above, in the second embodiment of the present invention, the same effects as those of the first embodiment can be obtained, and the vibrating portion 30 is attached to both of the wire meshes 22a and 22b as a pair of vent members, and By vibrating the filter 25 from both sides of the filter 10 with different behaviors, the following effects can be obtained. That is, compared to the first embodiment in which one of the insertion members 25a and 25b is stationary, the relative speed between the fibers can be increased, friction can be efficiently performed, and recharging can be performed in a shorter time.

  In the second embodiment, an example is shown in which the phases of the vibrating part 30 and the vibrating part 30A at the time of vibration are shifted by 180 °, but the insertion members 25 vibrating in the vibrating part 30 and the vibrating part 30A have different behaviors. And the phase between the vibrating section 30 and the vibrating section 30A is not necessarily limited to the example described above. Further, the vibration frequencies of the vibrating section 30 and the vibrating section 30A do not necessarily have to be equal.

Embodiment 3 FIG.
In the first and second embodiments, the filter 10 has a sheet shape. However, the third embodiment is different from the first and second embodiments in that the filter 10 has a pleated shape. Hereinafter, a description will be given focusing on differences between the third embodiment and the first embodiment. Configurations not described in the third embodiment are the same as those in the first embodiment.

FIG. 11 is a schematic sectional view showing a configuration of a filter unit according to Embodiment 3 of the present invention.
The filter 10 according to the third embodiment is formed in a pleated shape formed by alternately repeating a plate-shaped filter material by mountain folds and valley folds, and is configured in a three-dimensional shape having a height in a direction orthogonal to the ventilation direction. ing. Since the filter 10 has a pleated shape, the collection area of the filter 10 is increased as compared with the case where the filter 10 is formed in a sheet shape, so that the collection efficiency can be increased.

  As shown partially enlarged in FIG. 11, both surfaces of the filter 10 are sandwiched between wire meshes 22a and 22b formed in a pleated shape along the shape of the filter 10. The wire mesh 22 a is disposed downstream of the filter 10 in the ventilation direction, and is attached to the frame member 21 via the shaft 31. The vibrating part 30 is attached to the wire netting 22a. The wire mesh 22b is arranged upstream of the filter 10 in the ventilation direction, and is fixed to the frame member 21 with screws (not shown).

  As in the first embodiment, a plurality of insertion members 25 each having a hook-shaped barb 24 (return) at the end are provided on the surfaces of the wire meshes 22a and 22b facing the respective filters 10. The configuration in which the barb 24 of the insertion member 25 is inserted into the filter 10 so as to engage with the first fiber 11a and the second fiber 11b of the charging material 11 of the filter 10 is also the same as in the first embodiment. It is.

  The operation of the filter unit according to the third embodiment is the same as the flowchart in FIG. 6 used in the first embodiment.

  As described above, in the third embodiment, in the filter unit 1 including the three-dimensional filter 10, both surfaces of the filter 10 are sandwiched between the wire meshes 22a and 22b along the shape of the filter 10, and the insertion member on the wire mesh 22a side is inserted. By moving the fibers by vibrating 25, friction between the fibers is promoted. As a result, even in the case of the filter 10 having a three-dimensional shape, it is possible to recover the trapping rate to the same level as at the time of initial production, as in the first embodiment.

  Here, the vibration unit 30 is connected only to the wire mesh 22a side to vibrate, but the third embodiment is combined with the second embodiment, and the vibration unit 30 is provided also to the wire mesh 22b side. It may be.

  In addition, in the first to third embodiments, the example in which the insertion member 25 is vibrated has been described. However, the insertion member 25 only needs to vibrate relatively to the filter 10. Alternatively, the filter 10 may be vibrated.

  Reference Signs List 1 filter unit, 10 filter, 11 charged material, 11a first fiber, 11b second fiber, 12 support material, 20 housing, 21 frame material, 22 wire mesh, 22a wire mesh, 22b wire mesh, 23a first vent, 23b Two vents, 24 barbs, 25 plugs, 25a plugs, 25b plugs, 30 vibrating parts, 30A vibrating parts, 31 axes, 31A axes, 100 air conditioners, 100a air conditioner main body, 101 base , 102 front grille, 103 housing, 104 inlet, 105 outlet, 106 heat exchanger, 107 fan, 108 control device.

Claims (14)

A filter composed of a plurality of types of fibers having triboelectricity ,
An insertion member inserted inside the filter,
A vibrating unit that relatively vibrates the insertion member and the filter ,
Having a plurality of vents, comprising a pair of vent members sandwiching the filter from both sides,
A filter unit , wherein a plurality of the insertion members are provided on a surface of each of the pair of vent members facing each of the filters. The insertion member is inserted in a ventilation direction of the filter,
The filter unit according to claim 1, wherein the vibration unit vibrates the insertion member. 3. The filter unit according to claim 1 , wherein a plurality of the insertion members are dispersedly arranged in a surface direction of the filter. 4. The filter unit according to any one of claims 1 to 3, wherein the vibrating portion is attached to one of the pair of ventilation members. The filter unit according to any one of claims 1 to 3, wherein the vibrating part is attached to both of the pair of ventilation members. The filter unit according to claim 5 , wherein each of the vibrating portions attached to each of the pair of vent members vibrates in a different behavior. The filter unit according to any one of claims 1 to 6 wherein the vibrating unit is a motor. The filter unit according to any one of claims 1 to 7 , wherein the vibration unit vibrates for a set time required for saturation of the charge amount of the fiber. The filter unit according to claim 1 , wherein the vibrating unit is a spring. The filter unit according to any one of claims 1 to 9 , wherein the insertion member includes a barb that engages with the plurality of types of fibers of the filter. The filter unit according to any one of claims 1 to 10 , wherein the plurality of types of fibers include a first fiber and a second fiber having triboelectricity. The filter, the filter unit according to any one of claims 1 to 11 formed into pleated. An air conditioner comprising the filter unit according to any one of claims 1 to 12 . A filter composed of a plurality of types of fibers having triboelectric charging properties is sandwiched from both sides by a pair of vent members having a plurality of vents, and a surface of the pair of vent members facing each of the filters. A plurality of insertion members are provided on the side, and are inserted into the interior of the filter, and the filter is driven by relatively oscillating the insertion member and the filter to move the plurality of types of fibers and frictionally charge the filter. Charging method.

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